6612656416871 has 2 divisors, whose sum is σ = 6612656416872. Its totient is φ = 6612656416870.

The previous prime is 6612656416799. The next prime is 6612656416897. The reversal of 6612656416871 is 1786146562166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6612656416871 - 2²² = 6612652222567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6612656416871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6612656416771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306328208435 + 3306328208436.

It is an arithmetic number, because the mean of its divisors is an integer number (3306328208436).

Almost surely, 2^{6612656416871} is an apocalyptic number.

6612656416871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612656416871 is an equidigital number, since it uses as much as digits as its factorization.

6612656416871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 59.

The spelling of 6612656416871 in words is "six trillion, six hundred twelve billion, six hundred fifty-six million, four hundred sixteen thousand, eight hundred seventy-one".